학술논문
Clock distribution and synchronization over 1000BASE-T Ethernet
Document Type
Conference
Author
Source
IEEE Nuclear Science Symposuim & Medical Imaging Conference Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE. :2726-2728 Oct, 2010
Subject
Language
ISSN
1082-3654
Abstract
We report on a Synchronous Ethernet based clock distribution and timestamp synchronization implementation over 1000BASE-T (Gigabit over twisted pair) Ethernet. A central 125 MHz global clock is distributed to all detector modules using only commercial off-the-shelf components. The timestamps generated on different modules has a maximum fixed offset of 24–60 ns (depending on the switch tested), and a jitter of less than 500 ps (with no clock cleaner IC being used).